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Question

Which of the following is not in proportion to 3:2?

A
9:6
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B
15:10
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C
12:9
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D
30:20
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Solution

The correct option is C 12:9
a)
9:6 can be written as 96=32.Hence, 9:6 is in proportion to 3:2.

b)
15:10 can be written as 1510=32.Hence, 15:10 is in proportion to 3:2.

c)
12:9 can be written as 129=43.Hence, 12:9 is not in proportion to 3:2.

d)
30:20 can be written as 3020=32.Henec, 30:20 is in proportion to 3:2.

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